Toy for three dimensional carving



' Jan. 24, 1967 T. WOLF TOY FOR THREE DIMENSIONAL CARVING 4 Sheets-Sheet1 053M BY Tobin Wolf Filed April 28, 1965 ATTORNEY Jan. 24, 1967 T. WOLF3,299,779

TOY FOR THREE DIMENSIONAL CARVING Filed April 28, 1966 4 Sheets-Sheet 2um "mm mm -44 7/3"": 2'2 ti t F 5 INVENT OR 4 Tobin Wolf BY Z fiATTORNEY Jan. 24, 1967 'r. WOLF 3,299,779

TOY FOR THREE DIMENSIONAL CARVING Filed April 28. 1965 4 Sheets-Sheet 375162: l i/alf" ATTORNEY BY W Jan. 24, 1967 T. WOLF 3,299,779

TOY FOR THREE DIMENSIONAL CARVING Filed April 28, 1965 4 Sheets-Sheet 4INVENTOR 7255, Wolf BY /7 %.m

ATTORNEY United States Patent Ofiice 3,299,779 Patented Jan. 24, 19673,299,779 T! FOR THREE DKMENSIONAL CARVING Tobin Wolf, iiloomfield,N.J., assignor to Deiuxe Reading Corporation, Elizabeth, N .J., acorporation of New Jersey Fiied Apr. 28, 1965, Ser. No. 451,525 Claims,(Cl. 90-13.1)

This invention relates to a three dimensional toy carving device andmore specifically, to a three dimensional toy carving device for use bychildren for copying and reproducing a three dimensional configurationat a remote location.

Toys for copying flat two dimensional configurations at a remotelocation have been known in the art for many years and have enjoyedgreat popularity in the past. Toys of this type have been mostacceptable for use in reproducing drawings, tracings and the like at aremote location wherein the mere following of a line by one portion ofthe copying device will immediately cause a reproduction of such line atthe remote location. The prior art, however, has never known the use oftoy carving devices capable of producing carvings in three dimensions ata remote location by following the outline in the three dimensions ofthe three dimensional object to be reproduced and reproducing same atthe remote location.

In accordance with the present invention, there is provided a toycarving device for carving three dimensional objects at a remotelocation which are the reproductions of a three dimensional object to becopied which is positioned at a first location. The above isaccomplished by providing a quadrilateral device having four pivotallyattached arms, the pivot at each pair of adjacent arms being couple-d bya connecting rod or the like to form a pivotal hinge designed to rotatein a plane substantially in the plane of the quadrilateralconfiguration. One of the arms of the quadrilateral device has securedtherein a battery operated motor with a rotary file, burr or the likeafiixed to the shaft thereof and a tracer member having a dependingtracer element positioned and afiixed in the same quadrilateral arm andspaced from the motor. The quadrilateral device is also movable in allplanes normal to the plane of the quadrilateral device. This movement isprovided by means of a pivotable joint coupled to one arm of thequadrilateral device and parallel to this arm for rotating thequadrilateral device in an are about said arm. The last mentionedpivotable joint is coupled to a further pivotable joint by means of avertical arm or the like, the pivoting axes of the last mentioned jointand the further joint being parallel to allow the last mentioned pivotalto rotate about the said further pivotal joint. The further rotatablehinge or joint is mounted on a base member, the base member further including a work holder for holding a block to be carved and a Work holderfor retaining the object to be traced.

The three dimensional toy carving device described hereinabove iscapable of copying in depth and therefore can produce carvings, basereliefs and the like. Furthermore, a toy carving device of the type setforth hereinabove is safe, easy to use and can be manufactured at arelatively low cost, thereby making such a device adaptable for use.

It is therefore an object of this invention to provide a threedimensional toy carving device for carving and reproducing a threedimensional object at a position remote from the object to bereproduced.

It is a further object of this invention to provide a three dimensionaltoy carving device which is safe for childrens use, easy to use andwhich can be manufactured at a relativelylow cost.

It is a still further object of this invention to provide a threedimensional toy carving device having four pivotally attached armsforming a quadrilateral, the quadrilateral being rotatable about an axisparallel to one arm thereof and the axis being rotatable about a secondaxis parallel thereto to provide three dimensional movement.

The above objects and still further objects of this invention willimmediately become obvious to those skilled in the art from aconsideration of the following descrip tion of the preferred embodimentsof this invention, wherein:

FIGURE 1 is a top view of a preferred embodiment of a three dimensionaltoy carving device in accordance with the present invention;

FIGURE 2 is a front view of a three dimensional toy carving device ofthe preferred embodiment of the present invention;

FIGURE 3 is a side view of a three dimensional toy carving device of thepreferred embodiment of the present invention;

FIGURE 4 is a view taken along the line 44 of FIG- URE 3;

FIGURE 5 is a second embodiment of a three dimensional toy carvingdevice in accordance with the present invention;

FIGURE 6 is a third embodiment of a three dimensional toy carving devicein accordance with the present invention; and

FIGURE 7 is a motor driven belt drive arrangement for driving thecutting tool of the present invention.

Referring first to FIGURES 1 to 4, there is shown a base member 1 uponwhich a three dimensional object to be traced and a three dimensionalcarving to be produced are positioned and to which are attached thesupporting members of a carving device. The base member includes avertically extending flange 2 against which a block 3 to be carved and athree dimensional object 4 to be traced is caused to abut. The block 3is positioned and secured on the base of the carving device by rotationof a threaded screw member 5 which causes an abutting member 6 attachedthereto to force the block 3 against the flange 2. The threaded screwmember 5 is positioned to be received in a thread receiving member 7which is integral with the base 1. The three dimensional object 4 'isforced against the flange member 2 by means of a threaded scre'w member8 which is received by a thread receiving member 9 integral with thebase 1. Upon rotation of the threaded screw member, an abutting member10 forces the three dimensional object 4 to be rigidly secured againstthe flange 2.

Also integral with the rear portion of the base 1 are a pair of posts orears 11 and 12 having aligned apertures 13 and 14 therein. A verticallypositioned brace member or link 15 having a pair of vertical arms 16 and17 is positioned adjacent the posts 11 and 12. The end portions of thearms 16 and 17 each have aligned apertures 18 and 19, and 20 and 21, theapertures 18 and 19 being aligned with the apertures 13 and 14 and beingsecured in place by means of pins 22 and 23 to provide a hinge orpivotable joint.

The toy carving device further includes a quadrilateral or parallelogramshaped support frame having a rear member 24, a front member 25 and sidemembers 26 and 27. The rear member includes a pair of dependingextensions 28 and 29 integral therewith, the extension 29 including anaperture 30 aligned with the aperture 20 of the brace member 15 and theextension 28 including an aperture 31 aligned with the aperture 21 ofthe brace member 15. Pins or pivots 32 and 33 secure the members 24 and15 in place with respect to each other and provide a hinge or pivotablejoint. I I

The arm 24 further includes a pair of apertures 34 and 35 at the endportions thereof which are aligned with apertures in the end portions ofthe arms 26 and 27. These arms are pivotably secured with respect toeach other by means of pins or pivots 36 and 37. The arm 26 has anaperture at its other end portion which is aligned with an aperture inone end portion .of the front member 25. These apertures are pivotablysecured in place by a pin or pivot member 38 to provide a pivot orhinge. Also, the arm 27 has an aperture at its other end portion whichis aligned with an aperture at the other end portion of the front member25. These apertures are aligned and pivotably secured in place by meansof a pin or pivot 39 to form a pivot or hinge.

The front member 25 of the parallelogram includes a battery-operatedmotor 40 (batteries are not shown) secuned adjacent one end of the frontmember 25. This motor includes a chuck 41 which retains a toothed cutter42 such as a rotary file or a burr. Also secured in the front member 25adjacent the right hand end thereof is a tracer 43 having a tracer pointmember 44 positioned therein. The tracer point 44 is positioned in avertical direction by rotation of the threaded member 45 which iscoupled thereto. The threaded member 45 is referred to as the tracerknob. The threaded tracer knob 45 is locked in the desired position bymeans of the lock nut 46.

In operation, the tracer point 44 is caused to traverse the outersurface of a three dimensional object to be traced and reproduced. Thetracer point 44 is capable of free movement in three dimensions sincethe carving device has effectively three mutually perpendicular degreesof freedom. The first degree of freedom is the capability of theparallelogram composed of arm members 24, 25, 26 and 27 to be pivoted ina horizontal plane due to the pivots formed by the pivots or pins 36,37, 38 and 39. In addition, the hinges or pivotable members formed bythe pivot pins 32 and 33 in the extensions 29 and 28 allow theparallelogram to be rotated along a cylindrically extending area aboutan axis parallel to the arm 24, whereas, the pivots 22 and 23 in theposts 12 and 11 allow the said axis to be rotated along a cylindricallyextending area about an axis parallel to the axis of the pivots or pins32 and 33. It therefore follows that the carving device is capable ofbeing efl ectively positioned in three different mutually perpendicularplanes and, therefore, any movement of the tracer point 44 will bereproduced by the cutting member 42. In this manner, a three dimensionalobject positioned between the flange 2 and the member as shown by themember 4 can be reproduced on a carvable medium 3 which is positionedbetween the flange 2 and the member 6 merely by following the outersurface of the member 4 with the tracer point 44.

The embodiment of FIGURE 5 is similar to the embodiment of FIGURES 1 to4 and like numerals therein represent like components. The variationherein is in the rear member 24 and the means to secure the arm 24 tothe base member 1. In the embodiment of FIGURE 5, the rear arm 24 isaltered by providing a pair of upwardly extending portions 51 having anaperture therein to replace the extensions 28 and 29. Such upwardlyextending portions are provided at both ends of the arm 24 in a mannersimilar to the extensions 28 and 29 .of FIGURE 4. It should beunderstood, of course, that a single pivot may be used in place of thepair of pivots set forth herein though the double pivot provides betterresults. A pair of link members 52 having an aperture in both ends ofeach said arm member is aligned with the aperture in each member 51 andpins or pivots 53 secure the members 51 and 52 together to form a pairof pivotable members or hinges. The other aperture of each of themembers 52 is aligned with an aperture of one of a pair of members 73and secured thereto by a pin or pivot 54 to form apair of hinges orpivotablemeifibers. The members 73 are secured to the base 1.

It will be noted that the device for securing the block to be carved tothe base is altered in this embodiment in that the block 3 is positionedin place under a pair of securing members 55 and 59. These securingmembers are positioned to secure the block 3 rigidly in place by theadjustment of the screw members 56 and 58 in the screw receiving members57 and 60 which are secured to the base member 1.

It can again be seen that the carving device embodiment of FIGURE 5 willhave freedom in effectively three mutually perpendicular planes, onebeing the horizontal plane of the parallelogram arm members, the secondand third degrees of freedom being provided by the combined rotationabout the pivot pin 53 and the rotation about the pivot pin 54.

Referring now to FIGURE 6, there is shown a third embodiment of thepresent invention wherein, again, like numbers represent like structure.

In this embodiment, the pivots 54 of the embodiment of FIGURE 5 havebeen replaced by a pair of J-shaped arm members 61 having apertures atboth ends thereof. One pair of these apertures is aligned with theapertures of the members 51 and secured thereto by the pins or pivotmembers 53 to form a pair of hinges or pivotable members. The secondpair of apertures in the members 61 is aligned with the apertures at thetop ends of each of a pair of lug members 63 which are integral with thebase 1. The members 61 are secured to the members 63 by means of pins orpiv-ot members 62 which form pivots or hinges.

Any rotation about the pivot members 62 will be restored upon removal ofany bias thereon by means of a pair of springs 64 and 65 positionedbetween flanges 66 and '67 and the base 1 of each member 61. Movementabout the pivots 62 will cause one of these springs to be placed incompression and the other to be placed in expansion. Removal of the biaswill allow the springs to return to their original positions. It willagain be noted that the carving device is capable of movement ineffectively three mutually perpendicular planes as in the aboveembodiments and therefore is capable of carving out a three dimensionalpattern in the manner set forth hereinabove.

Referring now to FIGURE 7, there is set forth a preferrcd apparatuswhich can be used to drive the cutting tool of any of the embodiments ofFIGURES 1 to 6. A portion of the front arm member 25 is shown having apair of spindle bearings 70 and 71 secured to the arm member 25 orintegral therewith. A spindle 72 is positioned through apertures in thespindle bearings 70 and 71. A cutter bit collar '73 is secured to oneend of the spindle 72 by a screw member 74 which passes through athreaded aperture in the collar and forces the spindle against thecollar. The cutter 42 is positioned within the collar 73 and is securedtherein by a screw member 75 which passes through a second threadedaperture in the collar and forces the cutter against the collar.

A spindle pulley 76 having an inwardly extending annular groove 77 aboutthe end surface thereof is secured to the other end of the spindle.

A motor 78 is secured to the arm 25 by means of bolts 79. The motorshaft 82 includes a motor pulley 80 positioned and secured at one endthereof. The motor pulley 80 includes an inwardly extending annulargroove 81 about the end surface thereof. An 0 ring belt drive 83 istaughtly positioned in the grooves 77 and 81 of the pulleys 76 and 80 toprovide power transmission from the motor 78 to the cutter 44. Therelative diameters of the pulleys 7-6 and '80 can be adjusted to providethe desired rotational speed to the cutter 44.

Although the invention has been described with respect to threepreferred embodiments, many other embodiments and alterations andvariations thereof will im mediately become apparent to those skilled inthe alt.

It is therefore the intention of the appended claims to be interpretedas broadly as possible in view of the prior art to encompass all suchadditional embodiments, variations and modifications thereof.

What is claimed is:

1. A three dimensional toy carving device comprising a support having aplurality of arms pivotally connected together to form a rectangularframe, a rectangular base, means adjacent one edge of the base mountingone of said arms on a face of the base for pivotal movement aboutparallel spaced axes, means mounting a cutting tool and a tracer onanother arm of the frame parallel to said one of said arms, and clampingmeans adjacent the opposite edge of the base for clamping a work ieceunder the cutting tool and an object to be traced under the tracer onsaid face of the base, the means pivotally mounting said one armcomprising an ear extending laterally from said arm adjacent each endthereof, a support secured to said face of the base, and link meanspivotally connected to said ears and support, the pivotal connection ofsaid one arm with adjacent arms comprising spaced ears extending inopposite directions from the opposite ends of said one arm and pivotpins extending through said ears and the adjacent arms.

2. A device as defined in claim 1 wherein the support comprises spacedears integral with the base and the link means comprises a frame mountedbetween the ears on the arm and frame.

3. A three dimensional toy carving device comprising a support having aplurality of arms pivotally connected together to form a rectangularframe, a rectangular base, means adjacent one edge of the base mountingone of said arms on a face of the base for pivotal movement aboutparallel spaced axes, means mounting a cutting tool and a tracer onanother arm of the frame parallel to said one of said arms, and clampingmeans adjacent the opposite edge of the base for clamping a work pieceunder the cutting tool and an object to be traced under the tracer onsaid face of the base, the means pivotally mounting said one armcomprising an ear extending laterally from said arm adjacent each endthereof, a support secured to said face of the base, and link meanspivotally connected to said ears and support, the support comprisingspaced arms each having a portion overhanging the base and the linkmeans comprises separate links pivotally connected to the overhangingportion.

4. A three dimensional toy carving device com rising a support having aplurality of arms pivotally connected together to form a rectangularframe, a rectangular base, means adjacent one edge of the base mountingone of said arms on a face of the base for pivotal movement aboutparallel spaced axes, means mounting a cutting tool and a tracer onanother arm of the frame parallel to said one of said arms, and clampingmeans adjacent the opposite edge of the base for clamping a work pieceunder the cutting tool and an object to be traced under the tracer onsaid face of the base, the means pivotally mounting said one armcomprising an ear extending laterally from said arm adjacent each endthereof, a support secured to said face of the base, and link meanspivotally connected to said ears and support, the support comprisingspaced lugs and the link means comprises J-shaped members with the longleg of the I pivotaliy connected to a lug and the short leg overhangingthe base and pivotally connected to an ear.

5. A device as defined in claim 4 further including 0ppositely extendingflanges on the long leg of the J and spring means between said flangesand said face of the base to resiliently maintain the long leg of the Jin a preselected position.

References Cited by the Examiner UNITED STATES PATENTS 652,341 6/1900WenZel -133 1,433,154 10/1922 Ruppel 90-13.2 2,506,166 5/1950 Olson9013.1 2,689,505 9/1954 Ossenback 9013.1 2,793,569 5/1957 Tanner et a1.9013.1 3,211,061 10/1965 Cretsinger 90l3.1

FOREIGN PATENTS 105,299 6/ 1924 Switzerland.

WILLIAM W. DYER, JR., Primary Examin r.

ANDREW R. JUHASZ, Examiner.

G. A. DOST, Assistant Examiner.

1. A THREE DIMENSIONAL TOY CARVING DEVICE COMPRISING A SUPPORT HAVING APLURALITY OF ARMS PIVOTALLY CONNECTED TOGETHER TO FORM A RECTANGULARFRAME, A RECTANGULAR BASE, MEANS ADJACENT ONE EDGE OF THE BASE MOUNTINGONE OF SAID ARMS ON A FACE OF THE BASE FOR PIVOTAL MOVEMENT ABOUTPARALLEL SPACED AXES, MEANS MOUNTING A CUTTING TOOL AND A TRACER ONANOTHER ARM OF THE FRAME PARALLEL TO SAID ONE OF SAID ARMS, AND CLAMPINGMEANS ADJACENT THE OPPOSITE EDGE OF THE BASE FOR CLAMPING A WORK PIECEUNDER THE CUTTING TOOL AND AN OBJECT TO BE TRACED UNDER THE TRACER ONSAID FACE OF THE BASE, THE MEANS PIVOTALLY MOUNTING SAID ONE ARMCOMPRISING AN EAR EXTENDING LATERALLY FROM SAID ARM ADJACENT EACH ENDTHEREOF, A SUPPORT SECURED TO SAID FACE OF THE BASE, AND LINK MEANSPIVOTALLY CONNECTED TO SAID EARS AND SUPPORT, THE PIVOTAL CONNECTION OFSAID ONE ARM WITH ADJACENT ARMS COMPRISING SPACED EARS EXTENDING INOPPOSITE DIRECTIONS FROM THE OPPOSITE ENDS OF SAID ONE ARM AND PIVOTPINS EXTENDING THROUGH SAID EARS AND THE ADJACENT ARMS.